[PATCH] drm/i915: Drop PIPE-A quirk for 945GSE HP Mini

[PATCH] drm/i915: Drop PIPE-A quirk for 945GSE HP Mini

[Chris Wilson]

Since the introduction of BIOS fb preservation, circa 3.17, we began
encountering a failure during boot when trying to use force-detect
before GEM was initialised. That bug is from

commit 7fad798e16fecddd41c6a91728a09f0b9507e40c
Author: Daniel Vetter <daniel.vetter@ffwll.ch>
Date:   Wed Jul 4 17:51:47 2012 +0200

    drm/i915: ensure the force pipe A quirk is actually followed

but investigation of the affected machine revealed that it was using a
PIPE-A quirk even though it was a 945GSE and the quirk is only supposed
to be used to workaround a hardware issue on 830/845. That quirk was
added for this HP Mini in

commit 6b93afc564a5e74b0eaaa46c95f557449951b3b9
Author: Bryce Harrington <bryce@bryceharrington.org>
Date:   Wed May 27 03:40:52 2009 -0700

    add pipe a force quirk for Dell mini

in order to workaround an issue with the BIOS behaving strangely during
lid-close. Since then we have a much larger hammer to thwart the BIOS
after opening the lid and the PIPE-A quirk is no longer required.

Reported-any-tested-by: Apostolos B.
References: https://bugs.freedesktop.org/show_bug.cgi?id=21960
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=87521#c13
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
---
 drivers/gpu/drm/i915/intel_display.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 77929538ec0a..8de94e8dcecc 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -14542,9 +14542,6 @@ static const struct intel_dmi_quirk intel_dmi_quirks[] = {
 };
 
 static struct intel_quirk intel_quirks[] = {
-	/* HP Mini needs pipe A force quirk (LP: #322104) */
-	{ 0x27ae, 0x103c, 0x361a, quirk_pipea_force },
-
 	/* Toshiba Protege R-205, S-209 needs pipe A force quirk */
 	{ 0x2592, 0x1179, 0x0001, quirk_pipea_force },
 
-- 
2.1.4

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Re: [PATCH] drm/i915: Drop PIPE-A quirk for 945GSE HP Mini

[Jani Nikula]

On Thu, 07 May 2015, Chris Wilson <chris@chris-wilson.co.uk> wrote:
> Since the introduction of BIOS fb preservation, circa 3.17, we began
> encountering a failure during boot when trying to use force-detect
> before GEM was initialised. That bug is from
>
> commit 7fad798e16fecddd41c6a91728a09f0b9507e40c
> Author: Daniel Vetter <daniel.vetter@ffwll.ch>
> Date:   Wed Jul 4 17:51:47 2012 +0200
>
>     drm/i915: ensure the force pipe A quirk is actually followed
>
> but investigation of the affected machine revealed that it was using a
> PIPE-A quirk even though it was a 945GSE and the quirk is only supposed
> to be used to workaround a hardware issue on 830/845. That quirk was
> added for this HP Mini in
>
> commit 6b93afc564a5e74b0eaaa46c95f557449951b3b9
> Author: Bryce Harrington <bryce@bryceharrington.org>
> Date:   Wed May 27 03:40:52 2009 -0700
>
>     add pipe a force quirk for Dell mini
>
> in order to workaround an issue with the BIOS behaving strangely during
> lid-close. Since then we have a much larger hammer to thwart the BIOS
> after opening the lid and the PIPE-A quirk is no longer required.
>
> Reported-any-tested-by: Apostolos B.
> References: https://bugs.freedesktop.org/show_bug.cgi?id=21960
> Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=87521#c13
> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>

Pushed to drm-intel-fixes, thanks for the patch.

BR,
Jani.


> ---
>  drivers/gpu/drm/i915/intel_display.c | 3 ---
>  1 file changed, 3 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
> index 77929538ec0a..8de94e8dcecc 100644
> --- a/drivers/gpu/drm/i915/intel_display.c
> +++ b/drivers/gpu/drm/i915/intel_display.c
> @@ -14542,9 +14542,6 @@ static const struct intel_dmi_quirk intel_dmi_quirks[] = {
>  };
>  
>  static struct intel_quirk intel_quirks[] = {
> -	/* HP Mini needs pipe A force quirk (LP: #322104) */
> -	{ 0x27ae, 0x103c, 0x361a, quirk_pipea_force },
> -
>  	/* Toshiba Protege R-205, S-209 needs pipe A force quirk */
>  	{ 0x2592, 0x1179, 0x0001, quirk_pipea_force },
>  
> -- 
> 2.1.4
>
> _______________________________________________
> Intel-gfx mailing list
> Intel-gfx@lists.freedesktop.org
> http://lists.freedesktop.org/mailman/listinfo/intel-gfx

-- 
Jani Nikula, Intel Open Source Technology Center
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Re: [PATCH] drm/i915: Drop PIPE-A quirk for 945GSE HP Mini

[shuang.he]

Tested-By: Intel Graphics QA PRTS (Patch Regression Test System Contact: shuang.he@intel.com)
Task id: 6342
-------------------------------------Summary-------------------------------------
Platform          Delta          drm-intel-nightly          Series Applied
PNV                                  276/276              276/276
ILK                                  302/302              302/302
SNB                                  316/316              316/316
IVB                                  342/342              342/342
BYT                                  286/286              286/286
BDW                                  321/321              321/321
-------------------------------------Detailed-------------------------------------
Platform  Test                                drm-intel-nightly          Series Applied
Note: You need to pay more attention to line start with '*'
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